Topic: How to fix update dependancies

[billi]

Reported this to bugzilla Ticket # 3339
http://bugs.contribs.org/buglist.cgi?quicksearch=zlib+%3D+1.2.1.2

The problem is that Yum reports deficiency of a dependency, even though it says earlier on that it has looked after that.
It stops the update.
How can one see what the dependency are for a package and how do you force a dependency to install/update and have Yum recognize  it??